Milk Carton Derby

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Milk Carton Derby

July 13, 2019 @ 9:00 am - 3:00 pm


We at YPOS and YP Impact wanted to try something new, quirky and fun! So we are participating in the 47th annual Seafair Milk Carton Derby this year!

In an hours time, we will build boats out of milk cartons, plywood, chicken wire, and other materials. We will then race the boats across Green Lake  next to other colorful milk carton boats of all shapes and designs for prizes and bragging rights.


The number of teams we form will be based on the number of signups we receive. There can be up to 8 people per team and 4 from each team must be on the boat.

We are participating in the team challenge and will be building the boats on-site the day of the event.

No special skills are required to participate. If you have special skills such as construction, design, rowing, engineering, architecture, boating, etc we want to know about them at registration though.

Because we are part of the Team Challenge it is important we are there at Check-in time.

09:00 AM Check-in
10:30 AM National Anthem
10:35 AM Race Start
03:00 PM Event Ends

We are not sure the order of the heats for the races and will update as we get more information. It is possible we will be done before 3:00PM (but who doesn’t want to stick around and watch the races and be entertained.)

Nonprofit & Prizes
Any prizes we win will benefit Westside Baby.

Awards will be given to the top 3 fastest teams per category and to the top 3 overall most creative boats

Sponsored by:

Flow Fitness combines four distinct studios offering yoga, barre, cycle and team training with a strength and conditioning gym to offer its members an unparalleled fitness experience in Seattle. Our equipment, classes and training programs are all geared toward movements that will help improve your quality of life and become the person you always thought possible. Employees and members are here to provide the support and inspiration necessary to make your workout the highlight of your day.  

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July 13, 2019
9:00 am - 3:00 pm
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YP Impact


Green Lake Aqua Theater
West Green Lake Way N
Seattle, WA 98103 United States
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